VersaLogic VL-486-4, Справочное руководство

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External Connections
VL-486-4 Reference Manual Installation – 51
J2 – D
IGITAL
I/O C
ONNECTOR
Table 27: Digital I/O Connector Pinout
J2
Pin
Signal
Name
Function
1 PA0 Port A Data 0
2 Ground Ground
3 PA1 Port A Data 1
4 Ground Ground
5 PA2 Port A Data 2
6 Ground Ground
7 PA3 Port A Data 3
8 Ground Ground
9 PA4 Port A Data 4
10 Ground Ground
11 PA5 Port A Data 5
12 Ground Ground
13 PA6 Port A Data 6
14 Ground Ground
15 PA7 Port A Data 7
16 Ground Ground
17 PB0 Port B Data 0, Counter/Timer 2 Output
18 Ground Ground
19 PB1 Port B Data 1, Counter/Timer 2 Count Input
20 Ground Ground
21 PB2 Port B Data 2, Counter/Timer 2 Trigger Input
22 Ground Ground
23 PB3 Port B Data 3, Counter/Timer 2 Gate Input
24 Ground Ground
25 PB4 Port B Data 4, Counter/Timer 1 Output
26 Ground Ground
27 PB5 Port B Data 5, Counter/Timer 1 Count Input
28 Ground Ground
29 PB6 Port B Data 6, Counter/Timer 1 Trigger Input
30 Ground Ground
31 PB7 Port B Data 7, Counter/Timer 1 Gate Input
32 Ground Ground
33 Power +5V Rack Power
34 Ground Ground
PA0-PA7 — Port A Data Lines.
These TTL input/output signals transfer information
between the CIO Port A and external devices. The signals can be configured as inputs, outputs,
tri-state, or open-drain.
PB0-PB7 — Port B Data Lines.
These TTL input/output signals transfer information
between the CIO Port B and external devices. They may also be used to provide external access
to CIO Counter/Timers 1 and 2. The signals can be configured as inputs, outputs, tri-state, or
open-drain.
Power — +5V Power Output. When jumper V1 is installed, up to 500 mA can be drawn
from this +5V output to power the Opto 22 interface rack or other external equipment. If the I/O
rack is powered by a separate external supply, the power jumper on the I/O rack or the V1
jumper must be removed. This output is fused with a resettable polyfuse rated at 1A.